How long would it take for the first S-wave to arrive at a seismic station 4,000 kilometers away from the epicenter of an earthquake?

(1) 5 mins

(2) 7 mins 0 sec

(3) 12 mins 40 sec

(4) 13 mins 20 sec

Give the suffix which forms adverbs indicating direction toward a part of the body.

Mammals that lay eggs are termed A. Monotremes. B. marsupials. C. placentals. D. bird-like.

What controls the cell's activities

Compare spermatogenesis and oogenesis as to timing of the processes, and the number and type of cells finally produced.

If the trade in tiger products is banned, tiger reserves are guarded by well equipped staff, communities abutting tiger habitat are given a stake in protecting tigers, and the makers of traditional medicines can be persuaded that tiger parts are not

Which statement describes the relationship between plants, animals, and the carbon cycle?

In a glass you have 76% salt water also you have an egg which is 90% water inside, which way would the water move.

Explain how the water cycle functions because of change in matter.

Small vesicles containing pigment inside of pigmented fish epidermal cells aggregate or disperse in response to treatment with certain chemicals.

How does sunlight affect the process of photosynthesis